A Source at Rest Emits Light of Wavelength 500 Nm

question 5

Multiple Choice

A source at rest emits light of wavelength 500 nm.When it is moving at 0.90c toward an observer, the observer detects light of wavelength:

• A)26 nm
• B)115 nm
• C)500 nm
• D)2200 nm
• E)9500 nm

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Definitions:

Credit Period

The duration of time the buyer is given to pay for a purchase after the goods are delivered or the services are provided.

Discount Period

The time frame during which a buyer can pay less than the full invoice amount due to early payment incentives.

Sales Tax

A government-imposed tax on sales of goods and services, typically collected at the point of sale from consumers.

Charge Customer

This involves billing a customer for goods or services rendered, resulting in an accounts receivable entry in the company's books.